lol you dont get overtime in the nhs ...
anyway, there is no "average wage" for someone who has been a nurse for 10 years, because it dpends how ambitious you are. You could still be a band 5 nurse (same band as a recen graduate nurse), or you might have gon on to be a senior sister level (band 7) earning 35000 a year, depending what job you're in. One of the strange things about the profession is that as you go up in wages, sometimes you actually get less, for example a ward sister might not work evenings/weekends/nights, therefore dosent get unsocial hours pay, and even if they do, you only get the unsocial bit paid at a lower band than you actually are. if you are a top nurse consultant, you might earn up to about 80 000 a year. you can look at the payscales on the RCN website